"The fact is that even children now are on computer terminals for long periods of time, and many are playing games using hand held devices that put strain on their vision system," Dr. Duenas said.

他说：“现在的情况是，连孩子都在电脑上呆很长时间，很多孩子还玩掌上电子游戏机，这就对他们的视觉系统造成了压力。”

youdao

The flood of people put tremendous strain on their hosts.

VOA: standard.2010.07.16

But actor Cillian Murphy, who plays Capa in Sunshine, explains how the needs of a mission might put strain on these carefully planned scenarios.

BBC: NEWS | Entertainment | The battle to stay sane in space

Labour has opposed a badger cull, arguing it will cost more money than it saves, put strain on the police and could even spread TB as badgers flee to different parts of the country.

BBC: Cruelty to badgers 'almost doubles' ahead of cull

Renovations have put strain on many a marriage.

WSJ: One Duplex, Three Renovations | Balance Sheet